Because the supplement industry is loosely regulated, some companies cut corners
Other patients also experienced clinical improvements, including a 6 year old boy with severe diabetes, ketosis (accumulation of ketones, a term first used by the German chemist Leopold Gmelin - figure 5), heavy glycosuria and malnutrition (de Levia, Brugus, de Leiva-Prez)
the clinical evaluation of cases after treatment revealed a very good to excellent response on right side versus almost poor results on the left side
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These findings might be partly explained by short follow-up, different doses of l-carnitine, and the inclusion of low-quality trials without randomization and blinding [14, 15]